feat(core): impl FieldCallback, support spreading Row & Cell

[Hieuzest]

Usage

database.select('object').project(row => ({
    t: 'meta',
    t2: row.meta.embed.c,
    t3: $.concat(row.meta.a, 'my'),
    ...row.meta,
    ...row,
  }).execute()

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.98%. Comparing base (b2d7cd6) to head (0cfb9ea).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #110      +/-   ##
==========================================
- Coverage   99.01%   98.98%   -0.04%     
==========================================
  Files          39       39              
  Lines       13638    13719      +81     
  Branches     3367     3361       -6     
==========================================
+ Hits        13504    13580      +76     
- Misses        134      139       +5     

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